// Copyright 2011-2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.security.zynamics.zylib.gui.zygraph.functions;

import com.google.common.base.Preconditions;
import com.google.security.zynamics.zylib.gui.zygraph.helpers.IEdgeCallback;
import com.google.security.zynamics.zylib.gui.zygraph.helpers.INodeCallback;
import com.google.security.zynamics.zylib.gui.zygraph.helpers.ISelectableNode;
import com.google.security.zynamics.zylib.gui.zygraph.helpers.IViewableNode;
import com.google.security.zynamics.zylib.types.common.IterationMode;
import com.google.security.zynamics.zylib.yfileswrap.gui.zygraph.AbstractZyGraph;
import com.google.security.zynamics.zylib.yfileswrap.gui.zygraph.edges.ZyGraphEdge;
import com.google.security.zynamics.zylib.yfileswrap.gui.zygraph.nodes.ZyGraphNode;

public class IteratorFunctions {
  public static <EdgeType extends ZyGraphEdge<?, ?, ?> & ISelectableNode & IViewableNode>
      void iterateInvisible(
          final AbstractZyGraph<?, EdgeType> graph, final IEdgeCallback<EdgeType> callback) {
    Preconditions.checkNotNull(callback, "Error: Callback argument can't be null");

    graph.iterateEdges(
        new IEdgeCallback<EdgeType>() {
          @Override
          public IterationMode nextEdge(final EdgeType edge) {
            if (edge.isVisible()) {
              return IterationMode.CONTINUE;
            }

            return callback.nextEdge(edge);
          }
        });
  }

  /**
   * Iterates over all invisible nodes in the graph.
   *
   * @param callback Callback object that is invoked once for each invisible node in the graph.
   */
  public static <NodeType extends ZyGraphNode<?> & ISelectableNode & IViewableNode>
      void iterateInvisible(
          final AbstractZyGraph<NodeType, ?> graph, final INodeCallback<NodeType> callback) {
    Preconditions.checkNotNull(callback, "Error: Callback argument can't be null");

    graph.iterate(
        new INodeCallback<NodeType>() {
          @Override
          public IterationMode next(final NodeType node) {
            if (node.isVisible()) {
              return IterationMode.CONTINUE;
            }

            return callback.next(node);
          }
        });
  }

  /**
   * Iterates over all selected nodes in the graph.
   *
   * @param callback Callback object that is invoked once for each selected node in the graph.
   */
  public static <NodeType extends ZyGraphNode<?> & ISelectableNode & IViewableNode>
      void iterateSelected(
          final AbstractZyGraph<NodeType, ?> graph, final INodeCallback<NodeType> callback) {
    Preconditions.checkNotNull(callback, "Error: Callback argument can't be null");

    graph.iterate(
        new INodeCallback<NodeType>() {
          @Override
          public IterationMode next(final NodeType node) {
            if (!node.isSelected()) {
              return IterationMode.CONTINUE;
            }

            return callback.next(node);
          }
        });
  }

  public static <EdgeType extends ZyGraphEdge<?, ?, ?> & ISelectableNode & IViewableNode>
      void iterateVisible(
          final AbstractZyGraph<?, EdgeType> graph, final IEdgeCallback<EdgeType> callback) {
    Preconditions.checkNotNull(callback, "Error: Callback argument can't be null");

    graph.iterateEdges(
        new IEdgeCallback<EdgeType>() {
          @Override
          public IterationMode nextEdge(final EdgeType edge) {
            if (!edge.isVisible()) {
              return IterationMode.CONTINUE;
            }

            return callback.nextEdge(edge);
          }
        });
  }

  /**
   * Iterates over all visible nodes in the graph.
   *
   * @param callback Callback object that is invoked once for each visible node in the graph.
   */
  public static <NodeType extends ZyGraphNode<?> & ISelectableNode & IViewableNode>
      void iterateVisible(
          final AbstractZyGraph<NodeType, ?> graph, final INodeCallback<NodeType> callback) {
    Preconditions.checkNotNull(callback, "Error: Callback argument can't be null");

    graph.iterate(
        new INodeCallback<NodeType>() {
          @Override
          public IterationMode next(final NodeType node) {
            if (!node.isVisible()) {
              return IterationMode.CONTINUE;
            }

            return callback.next(node);
          }
        });
  }
}
